7.1 Procedure Model Analysis In table 1 is possible to see the general overview of the chosen procedure models, according to the criteria selected on section five. All models are powerful methodologies that approach SOA in a more adequate manner than old-fashioned procedure models, offering a more comprehensive set of alternatives and addressing many of the elements needed to build projects under this approach. However, as it can be observed, there is no Procedure Model that covers all the aspects considered important, some models for instance, focus more on software engineering, others do not take into consideration governance and a few of them offer tool support: Enterprise SOA Roadmap: Covers very detailed the analysis and development steps of what could be a comprehensive lifecycle, but leaving governance without an important role, which is treated at the operational level when enterprise SOA and NetWeaver community are set up. SAP tools are adopted in this methodology, i.e. NetWeaver, with the purpose of achieving and growing the added value that resulted from this solution, considering service consumer and service producer together. SOA Roadmap, as a planning tool, should be materialized avoiding risk and keeping cost low. Roles awareness is an important aspect in the adoption of a SOA roadmap, enabling a better understanding of the impact of the solution and how to deliver a robust SOA project (Kack amd Lindemann 2007). SOA Foundation Life Cycle: Essentially this procedure model concentrates on individual services leaving business processes and composite applications out of the lifecycle. Despite the fact of been a methodology focusing more on software engineering, business engineering aspects are also treated. The use... ... middle of paper ... ...ce-oriented Design and Development Methodology: is a procedure model focusing in software engineering that describes in a detailed manner the different phases involved in this methodology. A couple of negative aspects come across this methodology; first, there is no tool-set integration to the procedure model to effectively support the procedure model and the second aspect not properly treated is a case study or example that it could have been included to give a better explanation of this SOA approach. SDDM is a very interesting way to solve the challenges that SOA imposes, some strengths that can be mentioned are the availability of its specification, Business IT-alignment focus, consideration of service consumer and producer and the description of the entire life-cycle. In addition, this is a Web services driven SOA methodology (Papazoglou and van de Heugel 2006).
Business requirements are gathered in this stage. This stage is the main focus of the project managers and stake holders. It is performed by the senior members of the team with inputs from the customer, the sales department, market surveys and domain experts in the industry. This information is then used to plan the main project approach and to conduct product feasibility study in the economical, operational and technical areas. You identify needs of the software. This is the vital stage, because bad investigation may lead to the project
The Systems Development Life Cycle (SDLC) consists of phases used in developing a piece of software. It is the plan of how to develop and maintain software, and when necessary, replace that software. In 2007 during my hospital’s transition to a new software system, I was fortunate enough to be included in the process. I did not get involved until the implementation phase, but from then on, until now, I remain very active in the process. I decided to highlight the Waterfall Model of SDLC. The Waterfall Model is a “sequential development process” with each phase continuing in a line (McGonigle and Mastrian, 2012, p. 205).
A software development process, also known as a software development life cycle (SDLC) can be explained as a structure, imposed on the development of a software product. The software development life cycle (SDLC) is an umbrella term for the overall process of developing, implementing, and retiring information systems through a multiple step process from initiation, training, documentation , design, analysis, maintenance, and consulting.
The new process is defined to manage IT priorities efficiently and effectively. Accordingly, the process results in the selection of projects based on business requirements that support organizational goals. This is in stark contrast to the old method in which the most highly prioritized business unit projects received funding. Moreover, the new process allows for company entities to manage and to create new processes for managing priorities at
It consists of a comprehensive plan which describes how to maintain, develop, alter and replace or enhance a specific software. The life cycle provides a complete methodology for improvement in the quality of software and the entire development process.
The systems planning phase is the first phase completed in the SDLC. It encompasses evaluating the feasibility and the cost of the system, identifying the risks involved with implementing the system, and determining the responsibilities of each of the team members. To begin the planning phase, a systems request is submitted to the IT department, detailing the problems and changes to be made in a system. (Rosenblatt, 2014). It is important to note that the request may be a large, significant request, or it can be a smaller, more minor request; however, each request should be addressed using the systems development life cycle. After the request has been made, a feasibility study is conducted that determines the costs and benefits of the new or improved system. The study then recommends a strategy that is best for the system in terms of technical, monetary, and time factors.
AtekPC had developed a vast array of IT applications primarily focused on for the use of business functions like accounting, manufacturing, sales and distribution. There was very little integration between these systems. Most projects were medium sized and were managed informally by the development team (Lead Analysts). Any new development or maintenance projects were undertaken using an informal approach and this led to quick response time and also fewer conflicts. Also the Lead Analysts had long tenures and developed a deep understanding of the business requirements. Changing business needs required complex projects that involved multiple functional and technological areas. The demands of t...
Williams, (1997) identified four steps to system planning. Earl (1989) proposed five alternate strategy frameworks which project managers should consider when deciding how the system will enhance the business function. Standard business strategy methods are used to identify such opportunities by using: value chains, application searching and information analysis (Earl 1989).
This White paper is about Software development life cycle based on agile principles or software development iterative methodology .This white paper contains and talks about Software Development Lifecycle (SDLC) employed to create a major or minor software r...
Service) and even business processes (Process as a Service). Virtualization has been a key step
The Waterfall model is more or less totally linear in progression with six specific stages being undertaken in chronologically descending order. The first stage is known as the Requirements stage, in which the document of product requirements is created for future reference. The Design procedure is the second stage, which culminates in the architecture for the base software. Next, the Construction stage occurs, where the implementation of coding upon the base architecture results in the actual software being created. The fourth stage is Integration, where the software is made ready for the systems that it will become a part of, merging it to create the first step of the final product. Testing and debugging then occur to make sure that Integration worked as planned without the introduction of new errors due to the integration or that old mistakes do not take on a new potency due to the change in the software. Finally, Installation of the product occurs, finishing the product, which is taken up by the Software and the Maintenance steps of the six-stage Waterfall model. There are non-traditional variations of the waterfall method, but these are not relevant to the current discussion, and as such, will not be covered at this time.
... team is going to adopt. This requires proper planning. Factors like budget, time, resource utilization, complexity of requirements, etc. should be considered in adopting a software model.
One way for the companies to meet the challenges is to recognize them as opportunities to improve the existing processes and create new innovative ones. Management of processes requires the ability to meet the goal goals for which they’ve been set up. Operations decisions follow clearly defined operations
The approach or the model framework of the project development is iterative and incremental development, that is, iterative and incremental development is a discipline for developing systems based on producing deliverables. Therefore, the basic idea behinds this approach is to develop a system through repeated cycles (iterative) and in smaller portions at a time (incremental), allowing developers to take advantage of what was learned during development of earlier parts of the project. Specifically saying, in incremental development different parts of the system are developed at various times and integrated based on their phases while in iterative development, parts of the system will be revisited in order to revise and improve them. Nevertheless, successful deliverables are acquired through modifying targets of the system consulted by users in order to get feedbacks.
Requirements engineering begins during the communication activity, continues into the modeling activity, and builds a bridge from the system requirements into software design and construction. Through requirements engineering, there is an examination of the context of software work performed. It is essential for the software engineering team to understand all requirements of a problem before the team tries to solve the problem. An identification of specific needs that the design and construction must address is also included. Further is a need for the identification of the priorities that guides the order for the completion of work. This i...